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Chrome Fle Edit View Fle Edit View History Bookmarks People Window Help Secure https://session.masteringphysics D-78596543 previous 3 of 10 ne Problem 6.18 Part A Calculate the magnitudes of the momentum of each gll before the collision and after the collision in the Earth reference trame Enter your answers numericaly separated by a comma At the roller rink, two 20-kg pirls accelerate toward each othor unti hey are each moving at 3.0 m/s in the Earth reference rame. They then collide stomach-to-stomach, grab on to each other, and flaa to the foor Submit My Answers Shee Part B Caloulate the magnitudes of the momentum of each gil beford the colision in the reference trame of a mother who started skating with one of the gits and then continued on o afher the collision without changing speed the momentum of the git that moves with the mother as Pr and the momentum of other girl as Enter your answers numerically separated by a comma. kg.m/s Part C Calculate the magnitudes of the momentum of each girl afher the collision in the reference trame desorbed in part 8 Enter your answers numerically separated by a comma kg m/s

Explanation / Answer

(A) before the collision:

p1 = 20 x 3 = 60 kg m/s

p2 = 20 x -3 = - 60 kgm/s

magnitude of p2 = 60 kg m/s

after the collision,

p1 = 0

p2 = 0

Ans : (60 , 0)

(b) p1 = 0

p2 = 20 x 6 = 120 kg m/s

Ans( 0 , 120)

(c) p1 = 20 x 3 = 60

p2 = 20 x 3 = 60 kg m/s

Ans: (60, 60)

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